Abstract
The present work is aimed at assessing leading-edge serrations as an airfoil turbulenceimpingement noise (TIN) reduction mean. It relies on extended anechoic wind-tunnel testing including far-field measurements over an observation sphere to infer the three-dimensional features of TIN, and on microphone-array measurements to extract leading-edge noise in frequency. In particular this allows measuring unambiguously reductions of up to 15 dB achieved by serrations on flat plates. A preliminary study of the three-dimensional flow field around the leading edge using time-resolved tomographic particle image velocimetry (PIV) is detailed.
Original language | English |
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Title of host publication | 25th AIAA/CEAS Aeroacoustics Conference |
Subtitle of host publication | 20-23 May 2019 Delft, The Netherlands |
Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
Number of pages | 18 |
ISBN (Electronic) | 978-1-62410-588-3 |
DOIs | |
Publication status | Published - 2019 |
Event | 25th AIAA/CEAS Aeroacoustics Conference - Delft, Netherlands Duration: 20 May 2019 → 23 May 2019 Conference number: 25 https://arc.aiaa.org/doi/book/10.2514/MAERO19 |
Conference
Conference | 25th AIAA/CEAS Aeroacoustics Conference |
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Country/Territory | Netherlands |
City | Delft |
Period | 20/05/19 → 23/05/19 |
Internet address |